Locomotive-tender-tank feeder.



`J, A. PILCHER. LOCOMOTIVE TENDER TANK FEEDER.

APPLICATION FILED OCT. T?. 1914.

Patented Sept.

4 SHEETS-SHEET I.

l0 OO! www2/Joao J. A. PILCHER.

lLOCOMOTIVVE TENDER TANK FEEDER.

APPLICATION FILED OCT. I7. 1914.

Patented Sept. 25, 1917.

4 SHEETS-SHEET 2.

wbr/wacom 53T @om J. A. PKLCHER.

LOGUIVIOTIVE TENDER TANK FEEDER.

APPLlc/mou FILED ocT. 17.1914.

Patented Sept. 25, 1917.

4 SHEETS-SHEET 3 LQQLQSQ.

i. A. PILCHER.

LocoMoTlvE TENDER TANK FEEDER.

APPLICATION FILED 001117, l9l4.

Patnted Sept. 25, 1917.

4 SHEETS-SHEET 4.

JOHN A. PILCI-IER, OF ROANOKE, VIRGINIA.

LOCOMOTIVE-TENDER-TANK meines.

Specification of Letters Patent.

Patented Sept. 25, 1917.

Application led October 17, 1914. Serial No. 867,131. f

To all whom t may concern:

Be' it known that l, JOHN A. PILCHER, a citizen of the United States, residing at Roanoke, in the county of Roanoke and State of Virginia, havel invented certain new and useful Improvements in Locomotive-Tender-'lank Feeders, of which the following is specication.

This invention relates to locomotive tender tank feeders or to means for filling railway tanks with water while under way, and its object is to provide improvements over the devices now used for this purpose.

lt is customary at the present time to provide a long shallow tank of rectangular cross section in the track, between the rails, for holding a supply of water, and a scoop is then'let down by one of the enginemen and the impetusl of the scoop against the water drives it up the scoop and discharges it into the tender tank. f

lith such devices it is necessary that the locomotive or tender be traveling at considerable speed, inasmuch as the water must rise to a height of about ten feet in order to be discharged into 'the tender tank. Also, with the track tank so placed there is trouble with dying ballast and dirt getting into the track tank and .then into the tender tank. I

Furthermore, the placing of the track tank on the wooden ties hastens theiry decay and at the same time makes their replacement difficult. A still further disadvantage is the difficulty of detecting leaks in the track tank and the tendency of the vibrations and sinking of the track is yto break the track tank joints and cause leaks, particularly with I must necessarily be used because of lack of space for my semi-circular tank.

In the present invention the track tank is elevated along side of the track and these difficulties are avoided. My invention also provides substantial and convenient means for transferring the water from this elevated tank to the tender tank, and in addition l ani enabled by locating the track tank to the side of the track to make it of semicircular cross section which not only is more easily manufactured, but is also more easily maintained, presents a more efficient surface and clearance for the scoop and is a. stronger and stiffer tank mechanically.

My ii'ivention. also provides a new and impro-ved method of projecting and withdrawthe rectangular shaped tank whichy ing the water scoop from the tender and ll have further provided a simple and desirable means for preventing the Scoop striking the end of the track tank in case it should lbe projected too early or not withdrawn at the proper time.

*W ith these objects, therefore, and others in view, the invention consists in the construction and in the combination. of elements as herein described and claimed.

In the drawings, Figure l represents an end elevation, partly in. section, of a tender having a portion of my invention applied thereto and having the track tank of my invention shown in its relative position.

Fig. 2 yis a partialv side elevation of the vwater scoop as used, showing the portion that is let down into the water in the track tank.

Fig. f3 is a partial plan view of the tender and mechanism of Fig. l, the same-showing also in plan view'the track tank.

Fig. i shows an alternate arrangement of the water scoop of my invention, the same being shown applied to a tender and the view being a view similar to Fig. l.

Fig. 5 is a side elevation of a portion of track with a tender thereon, along side of the track tank of my invention, this figure being drawn to a reduced scale.

Fig. G is a partial plan view of a tender showing the means for closing the end of my water scoop against the entering of cinders. Y

Referring now to the drawings wherein. like parts are similarly designated, l represents a locomotive tender on the track 2. To one side of this track and removed a suitable distance therefrom is a track tank 3 which extends continuously for a proper distance along the track.

This track tank 3 is elevated to a position near the top of the tender and is shown as supported on structural steel bents L which in turn are placedk on concrete piers 5. The tank 3 is made substantially semicircular in cross section, this forni being economicalv of construction and serving better to provide-a minimum amount of clearance forthe rocking that will obtain when the scoop is affixed to the top of the tender.

Itv also possesses other advantages over other sections'as hereinbefore cited.

The scoop 6 of my invention ismade in form of a portion of a hollow cylindrical ring when viewed in end elevation of the tender and it folloivs the path of a circular arc in being projected into nor Withdrawn stated, this Water scoop is made preferably circular inasmuch as in addition to being easy xof manufacture it offers the minimum amountfof skinl `friction a'sthe water passes through it and furthermore the use of this form simplifies other of the details used in Connectionivith its operation. A

The outer end 7 of the scoop G isv also circular in crosssection and is formed substantially at right angles to the ring portion 8 and is turned toward the front 9 of the tender, it being assumed that water will be taken-up 'only when the locomotive and tender are traveling v ahead.

The front 10 of" the scoop is, of course, open so that the Water in the track tank `may have full access thereto when lthe outer end 7 is partly submerged.

By cutting awa-y the lower portion of the outer end 7 of the scoop, the vupper portion 11 ofthe-same is made to extend slightly lmore toward the` f-roiitthan the lower portion 12, by Which construction the "upper portion forms a hood or shield and there will consequently be more tendency forwthe water to rush up the scoop and less tendency to splash. i

At- 13 I lprovide an opening in the top 'of the tender tank and embracing` this opening and secured tothe top -plate- 14k of lthe tender is a 'flanged collar 15, the opening through the same being made on the same circular' arc as the ring portion. of the scoop 6, ythe scoop passing loosely through this collar into the tender tank, the collar 15 serving as a guide for the said scoop.

fWhen the outerend of the scoop is projected into the track tank the inner end 16 of the yscoop is in the upper part of the tender tank, just below the bottom of the collar 15. `When the scoop is Withdrawn from thev track tank, as before stated it travels yin the path'of a circular arc about a center 17 the portion 8 of the scoop traveling back through the anged collar l5, and telescoping in to the Water space ofthe tender tank, the positions of the ends 16 and 7 When so withdrawn beingindica'ted in ydotted lines.

vof the end 7 of the scoop when entering the track tankl is very desirable in that theone movement projects `the same both outwardly and laterally and hence greatly simplifies the machinery necessary for its operation,

vWhich: mechanism vvill now beI described.

Aiiixed to the under sideof the scoop is a portion of acircular interna-l gear rack 18 which lis concentric with the center 17.

p A l y. VThis gear rack preferably passes through from the track tank 3. '1n-crossl section, as Y ,extends forward to the front end vor platform vof the tenderand secured to it at this .end is a.-ge,ai' wheel 26 Which cooperates with a similar gear Wheel 27 which is secured to. a short countershaft Q8. This countershaftis journaled :in any suitable bearing, as 29, and-further secured to .the shaft @Stor to. thegear wheel 27 isa hand vvWheel 30 .which iS Within easy reach lof the attendanton the platform of the locomotive tender.

Thisgear-qniechanism forms ay geartrain which may be of any approved form so that thexoperation of thev hand Wheel 30 by an y attendant will, ybyfmeans of the gear rack 18, project the scoopinto the Water or withdraw: it therefrom, depending upon the l'direction yof rotation lof the hand Wheel 3.0.

i Vhile ordinarily the overbalanced Weight of the scoopA about the center 17 will, whenA Ithe-scoop is fully Withdrawn,

prevent thereverse movement of the scOOb Auntil assisted Aby the operator, yet I. provide al lock- 31; in ordnerr to avoid any possibility ofthe scoop being run out by the: jar of the `tender and projecting beyond the clearance-dine when not running in the vicinity of a track tank.

In the use of my scoop it is necessary that means be yprovided for supporting the Weightl of the same and the Water therein when the scoopE isf'projected and in service. To perform this functionfl' provide along vSecured to the scoop G and adapted to coperate with the runway rail ..67 vis a runway shoe 67"l and When the scoop G. is-fprojected, thisrunway rail is adapted to carry the load ofthe scoop, the shoe 671L being adapted to minimize the friction be tween the parts `in running. The scoop mechanism is so constructed that the Weight Will come as Just stated and the rocking -of the tender will not e'ect the depth of the Scoop in the Water, in as much as the kshoe on the rail willalivays determine this, the scoop 6 being made to vibrate with reference tothe tender, and the various parts being constructed to admit of this. rlhe splash off the Water serves as a Water lubricant for the parts iny contact. At 7 6 I provide means of anyy approved form for -throwiuig the rack 18 out of gear when the scoop is riding on the rail 67.

ies

the track tank 3 a runway rail 67 which is secured to the track tank `in any convenient i i `manner.

' At the ends'of the track tank the rail 67 may be alternately elevated and depressed as shown at 69 and 70 to carry the end of the scoop up over the end of the track tank in case the attendant projects it too soon or fails to withdraw it before reaching the end of the track tank. But I showalso another and the more preferable way of accomplishing this in the same ligure (Fig. 5), where it will be seen that at 71 I have depressed the track slightly where it runs alongside of the track tank, the height of the track tank being made suitable for the depressed level of the track. When the tender approaches along the higher track at 7 2 which extends slightly within the limits of the track tank, the scoop will be carried clear of the end of the track tank, and the gradual declination of the track at 73 will gradually immerse the end of the scoop. Leaving the tank, the reverse occurs, the scoop gradually leaving the water along the ascending grade 74 and when reaching thev norma-l level at 7 5, which also occurs slightly within the limits of the track tank, the scoop is high enough to clear the end of the track tank. Thus no accident will occur by an ill timed movement, of the scoop in the vicinity of a track tank. Also, after thus leaving the track tank the water will drain out of the scoop, making it much easier to withdraw to its position inside the tender tank. In order to provide double safety, in this respect both forms of the feature just described may be used together.

In order to carry the scoop when it is projected and is not supported by the rail 67 I provide radial. braces or struts as follows:

Inside the water compartment ofthe tender tank is a hinged radial brace or strut 32 which is connected at 33 to a bracket 34 on the inner end of the scoop 6, this internal strut being attached to the scoop at a point vthat will never pass through the collar 15 when the scoop is projected.

Only one strut 32 is used inside the tender tank, it being located immediately under the scoop 6. However, two or more might as readily be used.

The lower end of the strut 32 is hinged at to the inside of the tender tank side sheet 36. r1`he pintle 37 of this hinge is as near the center 17 as mechanically,practical so that there will be very little binding in the strut as it rotates about the pintle 37 with the in-and-out movements of the scoop 6. This strut 3Q is'provided to support the inner end of the scoop when the scoop is projected as described.

Attached to the outer face of the tank `sheet 36 .is a hinge 38 and hinged to the same by means of the horizontal pintle 39 are two external struts 40 and 41 which are likewise radial and are adapted to support the outer end of the scoop when it is projected and not (otherwise supported. I he pintle 39, like the pintle 37 is as near the center 17 as is practical, and I wish it to be understood that when I speak of these struts 32, 40 and 41 as being radial, I apply this term to them on the assumption that it will be mechanically possible to locate these pintles coincident with the center 17.

It would be desirable to have the radial struts 4() and 41 rigid and extend directly out and attach to the scoop 6, but if such were done these struts would strike the side V36 of the tank when the scoop is withdrawn and even if a pocket were made in the side of the tender tank for these struts the strut 40 would strike the shaft 21, preventing the complet-e withdrawal of the scoop.

In order to avoid this the radial struts 40 and 41 are made in two parts, 40L and 40" and 441iL and 41", and the two parts are pivotally connected together at 42, a single pintle serving for both struts. The struts 40 and 41 are located one at each side of the scoop 6 and the outer ends 43 and 44 of the portions 40b and 41b are slidably and piifotably connected to the sides of the scoop G, the pins 45 and 46 forming the pivots and the heads of these pins being arranged to slide in the angular guides 47 and 48 provided for the purpose and rigidly secured to the sides of the scoop.

The parts are so proportioned that when the scoop is fully projected and the weight not carried by the rail 67, as for example, when not in the vicinity of a track tank, the pins 45 and 46 are in the uppermost eX- tremities of the guides or runners 47 and 48 respectively and the weight of the outer portion of the scoop will be carried by these pins and the struts 4() and 41. The parts are furthermore so proportioned that the portions 40b and 41b of the radial struts have not unfolded quite enough to reach a position in the same radial line with the portions 40 and 4F. being so arranged it will insure that the two portions of these struts will be properly folded when the scoop is withdrawn, which folding will now be described.

v`When the scoop is withdrawn from the track tank by means of the gear rack 13 and the gear train, the struts 40 and 41, instead of revolving as a whole about the pivot 39, will be broken or folded about the point 42, the portions 4()a and 41a rotating radially Vuntil they strike against lthe side 36 of the tender tank where they will be stopped, and the further travel of the scoop will rotate the portions 40b and 41b about the point 42, the pins 45 and 4G at the same time sliding down the runners 47 andflS. By this means the portions 4Gb and 41b of the struts 40 and 41 will. be folded back over the corner of the tender tank and over the shaft 21, in which position these parts are shown in vdotted lines in FigfI l.

In projecting the scoop, of course, the reverse movements of the parts occur.

l/Vhen the scoop is fully projected, with the joint 42 in the struts 40 and 41, these struts would not alone be capable of supporting any load and it. is necessary that means be provided to prevent the weight from knuckling the parts 40b and 41b about the parts 40Z1 and 41a. To accomplish this the links 49 and 50 are provided, these links being pivoted at their outer ends on the same trunnion 42 that connects the two portions of the struts 40 and 41. The inner ends of these links pass loosely through guides or eyes 51 and 52 which are affixed to the top ofthe tender tank and the ends of the links 49 and 50 are enlarged beyond these guides so that the guides form a stop for the links when they have attained their full travel.

Thus the links 49 and 50 serve as tension members to prevent the collapse of the struts 40 and 4l when under load. And at the same time these links do not interfere with the proper action of the struts when being folded back during the operation of withdrawing the scoop. For it will be seen that the links 49 and 50 will freely slide back through the loose fitting guides 51 and 52 and will finally end in the position shown in dotted rlines when the scoop is entirely withdrawn.

It is also necessary when the scoop is taking up water that means be supplied for staying or bracing the outer end of the same longitudinally of the tender. While the struts 40 and 41 may be made to serve partially for this, yet I provide additional stays for this purpose which I have made of short' `pieces of cable or rope, or they might be of any other suitable flexible material.

The outer ends of these cables 53 and 54 are aflixed to the opposite sides of the scoop near its outer end at 55 and 56 and the inner ends of the cables are aflixed to the side 36 of the tender at 57 and 58, these points being somewhat removed toward the front and rear of the tender respectively from the scoop. The length of these cables is such that the cables come taut when the scoop is fully projected, and on the scoop being withdrawn, the cables bend back over the upper edge of the tender as shown in dotted'lines in Fig. 1.

In Fig. 4 I have shown an alternate arrangement of scoop'and means for projecting it, also an alternate method of bracing and supporting it.

In this alternate device an external gear rack 59 is attached to the upper periphery of the scoop, this gear rack being otherwise similar to the rack 18 already described. A similar collar 60 is attached to the top of the tender, this collar serving in every way the lmade in the side of the tender tank, the

same as the collar l5 and `in addition the bearings for the shaft 61, which shaft replaces shaft 21 in the first arrangement, are secured to this collar instead of to the top of the tender.

A gear train' similar to that already described .is likewise used for moving the scoop, the gear wheel 62 being secured to the shaft 61 and meshing with the rack 59.

By locating the rack 59 on the back of the scoop and shaft 61 as shown I am enabled to make both the internal radial strut 68 and the external radial strut 64 without the joints such as are necessary in the previous arrangement for the external struts. rlfhe positions of the various parts when the scoop is fully withdrawn -are shown in dotted lines and in order that the strut 64 may pass to the position indicated a pocket 65 is formed or bent plate 66 being provided to form this pocket and complete the side of the tank which must necessarily be cut away. One strut only of 63 and 64 is used in this alternate arrangement, the cables 53 and 54 90 serving as before to stay the scoop laterally.

In order that flying cinders may not enter the water compartment of the tender when the scoop is withdrawn, I provide the pivoted flap 77 which is pivoted to the 95 tender by means of the vertical pintle 78,' the metal of the iiap extending around the pintle and forming an arm or extension 79. When the scoop is yprojected the portion l1 thereof strikes the flap 77 and pushes it to 100 the position shown in dotted lines in Fig. 6, the spring 80 holding `it in this position until the scoop is withdrawn. On withdrawing the scoop the portion 81 strikes the extension 79 and the .flap is swung around to 105 cover the open end 10 of the scoop, the spring 8O now serving to hold the flap against the open end of the scoop. lIhe dotted lines for the end of the scoop in Fig. 6 show the scoop just as it strikes the ex- 110 tension 7 9 of the flap. Y

In order that water may not be splashed out the open end of the scoop when the same is withdrawn and the tender tank filled I provide the inwardly opening check valve S2 in the scoop. This check valve is so disposed that the pintle 83 thereof is substantially vertical when the scoop is projected and horizontal when Withdrawn, the swinging check thus -being easy to open when projected and falling by gravity against its seat when the scoop is withdrawn.

From the description and drawings it will be seen that I have provided a workable device, even in detail, to take up Ywater at 125 slow speeds and to perform the other functions. And while I have thus described the specific form of many ofthe elements used I do not wish'to be limited to their exact form and construction as various changes might be made within the scope of the claims by those skilled in the art without departing from the spirit of my invention.

Having thus described my invention, what I claim is: y

i. In a locomotive tender tank feeding apparatus the combination with a locomotive tender provided with a tank, of a track tank placed parallel to the track and at one side thereof, a water scoop movably attached to the tender and adapted to be projected into the said track tank, the said scoop having a tubular portion which is in constant communication with the interior of the tender tank, andmeans for projecting and withdrawing said scoop in a direction transverse to the line of travel of the tender r and coincident with the axis of said tubular portion.

2. In a locomotive tender tank feeding apjiaratus, the combination with a tender provided with a closed tank having an aperturein its top wall, of a track tank placed parallel to the track and at one side thereof, a `water scoop movably attached to the tender and having a tubular portion which always passes through said aperture, and means for projecting and withdrawing said scoop to and from a position in which the scooping end may enter the track tank, the path of travel of the said scoop when being so projected and withdrawn being in a direction transverse to the track and coinci-` dent with the axis of said tubular portion.

3. In a locomotive tender tank feeding apparatus, the combination with a tender provided with a closed tank having an aperture in its top wall, of a track tank placed parallel to the track and at oneside thereof, a water scoop movably attached to the tender and comprising a portion of a tubular ring which always passes in an arcuate path through said aperture, and means for projecting and withdrawingr said scoop to and from aposition in which the scooping end may enter the track tank, the path of travel of said scoop when being so projected and withdrawn being in a direction transverse to the track and coincident with the arcuate axis of said scoop.

e. In a locomotive tender tank feeder the combination with the locomotive tender of a track tank disposed longitudinally of the track and to the side thereof, a water scoop affixed to the said tender and adapted to be projected into and withdrawn from the said track tank, a. runway rail secured to said track tank and disposed longitudinally of thesame, and a runway shoe secured to said water scoop and adapted to cooperate with said runway rail when the said water scoop is projected into the said track tank.

5. In a locomotive tender tank feeding apparatus the combination with a locomotive tender provided with a tank, of a track tank of semicircular cross section placed parallel to the track and at one side thereof, a water scoop morably attached to the tender and adapted to be projected into the said track tank, the said scoop having a tubular portion which is in constant communication with the interior of the tender tank, and means for projecting and withdrawing said scoop in a direction transverse to the line of travel of the tender and coincident with the axis of said tubular portion, the said scoop being provided with a cylindrical, longitudinal extension at its outer end of a size suitable for admission within the said track tank.

6. In a locomotive tender tank feeding apparatus, the combination with a tender provided with a closed tank having an aperture in its top wall, of a track tank placed parallel to the track and at one side thereof, a water rscoop i'novably attached to the tender and comprising a portion of a tubular ring which always passes through said aperture, and means for projecting and withdrawing said scoop to and from a position in which the scooping end will be within the track tank, the said scoop traveling in the path j of a circular arc in a vertical plane and in a direction transverse to the track and coincident with the axis of said scoop.

7. In a locomotive tender tank feeder, a water scoop comprising a portion of a hollow ring, in combination with the locomotive tender, said, water scoop being movably secured to the said tender and adapted to move in the path of a circular arc transversely of said tender, and means for eectingthe said movement of the water scoop.

8. In a locomotive tender tank feeder the combination with the locomotive tender of a hollow water scoop, said water scoop comprising a portion of a hollow, cylindrical. ring and being hinged to said tender and adapted to swing in the path of a circular arc transversely thereof and co-incident with the arcuate axis of said scoop, and radial struts adapted to support the said water scoop, said radial struts being secured to the water scoop at their outer ends and pivot-l all;7 secured to said tender at their inner ends, the pivot point being substantially at the center of the circular arc of travel of thesaid water scoop.

9. In a locomotive tender tank feeder the combination with a locomotive tender having side walls of a hollow water scoop, said water scoop being hinged to said tender and adapted to swing in the path of a circular arc transversely thereof, a radial strut within the water space of said tender and a radial strut external of said water space,

said radial struts being adapted to support the water scoop and being secured, thereto at their outer ends and pivotally secured to said tender at their inner ends, at points adjacent each other the pivot points being substantially at the center of the circular' arc of travel of the said water scoop, the side wall of the'tender ybeing interposed betweenexternal of said water space, said radial' struts being adapted toQsupport the water scoop and being secured thereto at their outer ends and' pivotally secured to lsaid tender at their inner ends, the pivot point being substantially at the center of the circular arc of travel. of the said water scoop, the said external radial strut havingV a pivoted joint intermediate its length whereby the outer portion thereof maybe folded inwardly over` the top of the tender.

l1'. Ina locomotive tender tank feeder the combination with they locomotive tender of a hollow water scoop, said water scoopvbeing hinged to said tender and adapted to swing in the path of a circular arc transversely thereof,A a radial struty within the Water space of said tender, a radial strut external of said water space, said radial struts being adapted to support the water scoop and beingjsecured thereto at 'their outer ends andpivotally secured to said tender at their inner ends, the pivot point being substantially at the center of the circular arc of travel of the said water scoop, the said external radial strut having a pivoted joint intermediate its length whereby the outer portion. thereof lmay be folded inwardly over the top of the tender, anda link between the tender and the joint in said radial strut. said link being adapted to prevent the outward folding ot' the radial strut.

In a locomotive tender tank feeder the combina-tion withv tho locomotive tender ot a water vscoop adapted to be projected laterally therefrom and a Yflexible connection between said tender and the outer end of said water scoop, said flexible connection forming a stay for said water scoop longitudinally of the said tender when the said scoop is projected, said flexible connection being secured to the side of the said vtender at a point in advance of the said scoop and being be drawn taut upon the projection oi the `said scoop and to collapse andv retreat with the retreat of the same.

13. In a locomotive tender tank feeder,

the combination'with a railway trackv of a locomotive tender adapted for use on the same, a waterretaining track tank adjacent the track and extending longitudinally thereof, the rsame having end heads which extend above the water level therein, a water scoop affixed to said tender and adapted to be projected nearly but not 'fully into scooping relationship with the said track tank and the water therein, the said'track being depressed within the limits of the saidtrack tank andrelative thereto below its normal level in such manner as to bodily lower the entire tender to a level whereinthe said scoop"` will be lowered 'therewith into completed 'scooping relationship with the said track tank and the water therein', the normal level of the said track prevailing at the ends oi: the said track tank and the'projectedposition of thevsaid sco-op being such that at thevnormal track level the end of the scoopv will pass over the end heads of the track tank, together with means for projectingv and withdrawing the said scoop.

' Lil. In a locomotive tender tank feeder the combination with the lo-comotive tender ot a track tank disposed longitudinally of the track,.a water scoop anixed to" said tender and adapted to be projected into and withdrawn from the'said track tank, a runway rail disposed longitudinally of thesaid track tank and a runway shoe secured to the said scoop and adapted to coperate with the said runway rail when the scoop is projected into the said track tank, the vertical relation of the scoop and the track tank being thereby regulated. f

l5. ln a locomotive tender tank feeder the combination withv the locomotive tender of a movable water scoop having its outer end open, and a movable flap mounted on said tender and adapted to close the open end of the said scoop. the said fiap being automatically operated by the movements of the said scoop.

Intestimonywhereof l athx my signature in presenceot two witnesses.

M. HfMARTIN, G. KIMMULING.

Copies of this patentmay be obtained forve cents each; by addressing-the Commissioner of Patents,

Washington, D. G2. 

